Table 6Number of Infant Deaths, Live Births and Infant Death Rates
by Selected Characteristics of Newborn and of Mother
for Michigan Residents, 2015

(Continued)

Characteristics
of Newborn

Infant
Deaths

Live
Births

Infant Death
Rate

Sex of Infant

765

113,211

6.8 ±0.5

Male

428

57,708

7.4 ±0.7

Female

334

55,499

6.0 ±0.6

Birthweight

765

113,211

6.8 ±0.5

1,499 Grams or Less

394

1,735

227.1 ±20.0

1,500 - 2,499 Grams

133

7,876

16.9 ±2.8

2,500 Grams or More

235

103,552

2.3 ±0.3

Plurality

765

113,211

6.8 ±0.5

Single Birth

647

109,001

5.9 ±0.5

Multiple Birth

111

4,204

26.4 ±4.8

Characteristics
of Mother

Infant
Deaths

Live
Births

Infant Death
Rate

Age of Mother

765

113,211

6.8 ±0.5

< 20

65

6,412

10.1 ±2.5

20 - 29

438

60,831

7.2 ±0.7

30 - 39

233

43,292

5.4 ±0.7

40 +

22

2,673

8.2 ±3.4

Marital Status

765

113,211

6.8 ±0.5

Married

279

64,825

4.3 ±0.5

Unmarried

479

48,384

9.9 ±0.9

Level of Prenatal Care

765

113,211

6.8 ±0.5

Adequate

357

76,051

4.7 ±0.5

Intermediate

224

26,506

8.5 ±1.1

Inadequate

177

10,639

16.6 ±2.4

Exposure to Tobacco

Infant
Deaths

Live
Births

Infant Death
Rate

Smoked During Pregnancy

765

113,211

6.8 ±0.5

No

574

94,767

6.1 ±0.5

Yes

191

18,444

10.4 ±1.5

Secondhand Smoke During Pregnancy

765

113,211

6.8 ±0.5

No

540

92,321

5.8 ±0.5

Yes

165

16,037

10.3 ±1.6

Smoked or Secondhand Smoke During Pregnancy

765

113,211

6.8 ±0.5

No

465

83,977

5.5 ±0.5

Yes

252

25,208

10.0 ±1.2

History of smoking

765

113,211

6.8 ±0.5

No

534

90,387

5.9 ±0.5

Yes

210

22,150

9.5 ±1.3

Note:

Rates are per 1,000 live births. Adding and subtracting the number shown after the ± symbol from the rate creates a confidence interval indicating that the true rate lies between the lower and upper bounds of this interval with 95 % statistical confidence. Records with selected characteristics unknown are included in total
only. Level of prenatal care is according to the Kessner Index which is a
classification of prenatal care based on the month of pregnancy in which prenatal care
began, the number of prenatal visits and the length of pregnancy (i.e. for shorter
pregnancies, fewer prenatal visits constitute adequate care.)